Thus, in $RbCl$, rubidium forms a cation and chlorine forms an anion and an ionic bond is formed. Whereas, in $BrCl$ , both bromine and chlorine are halogens and tend to gain electrons. So they share an electron and form a covalent bond.
Is BrCl a polar molecule?
Chlorine is more electronegative tha bromine . Consequently BrCl will be polar with chlorine carrying the partial negative charge . This molecule also has a dipole moment of 0.57 D . All diatomic molecule with polar bonds are polar molecules.
Is becl2 ionic or covalent?
Beryllium Chloride (BeCl2) is not ionic but rather a covalent compound. This is mainly because beryllium is a small atom with high relative ionization energy (900 kJ/mol) and therefore does not form cations. It rather attracts a bonding pair of electrons towards itself only.
